Water heater



FIG. 1 is a perspective view of a water heater;

FIG. 2 is another perspective view of the water heater of FIG. 1;

FIG. 3 is a front view of the water heater of FIG. 1;

FIG. 4 is a rear view of the water heater of FIG. 1;

FIG. 5 is a left view of the water heater of FIG. 1;

FIG. 6 is a right view of the water heater of FIG. 1;

FIG. 7 is a top view of the water heater of FIG. 1; and,

FIG. 8 is a bottom view of the water heater of FIG. 1.

The design is a water heater intended for heating water. 

CLAIM The ornamental design for a water heater, as shown and described. 